Sash-fastener.



No. 699,334. Patented May 6, I902.

J. W. LYON.

SASH FASTENER.

(Applicationfiled Jan. 25, 1902.)

("0 Model.)

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lfllllllllllllllllll llllllllllllllg l lli x Nb UNlTE STATES JAMES \V. LYON, OF BROOKLYN, NEW YORK.

SASH-FASTENER.

SIPECIFICATION forming part of Letters Patent No. 699,334, dated May 6, 1902.

Application filed January 25,1902. Serial No. 91,207. (No model.)

To (LZZ whom it 12mg concern/.-

Be it known that 1, JAMES XV. LYON, a citizen of the United States, residing at the borough of Brooklyn, city of New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Sash-Fasteners, of which the following, taken in connection with the accompa nying drawings and the letters of reference marked thereon, is a full, clear, and exact specification.

My invention has relation to that variety of sash-fasteners which are intended to be applied to the lower sash of awindow and to lock both the lower and the upper sash when they or either of them are in either closed or open positions, for which purpose the fastener is supplied with one bolt to secure the lower sash and one bolt to secure the upper sash.

The object of my invention is to provide or produce a sash-fastener of the class above indicated, which shall be of few and simple parts, easy of construction, afford a fastener secure against being opened from the outside, either by moving one or both of the bolts back from the exterior of the casing or window or by turning the knob or thumb-piece from the exterior of the window. To accomplish all of this and to secure other and further advantages in the matters of construction, operation, and use, my improvements involve certain novel and useful arrangements or combinations of parts and peculiar features of construction, as will be herein first fully described and then pointed out in the claims.

In the accompanying drawings, forming partof this specification, Figure 1 is a horizontal view showing a section of a portion of a window-frame and an exterior sash with my improved sash-fastener shown in plan view and in locking position on the top of the lower window-sash. Fig. 2 is a plan view of the under side of the improved fastener, the same being detached from the sash and showing the locking-bolts drawn back. Fig. 3 isaview like Fig. 2, but showing both bolts thrown out or in their locking position. Fig. at is a sectional elevation on a plane through line 4 4 of Fig. 2. Fig. 5 is a perspective view of the casing or shell of the fastener as it appears when the bolts are removed therefrom, showing the two operating pins or studs projecting through the slot in the casing. Fig. 6 is a perspective view of one of the bolts with its slotted arm or appendage as it appears when separated from the other parts or before it is located in the casing, and Fig. 7 is a similar view of the other bolt with its slotted appendage. Fig. 8 is an elevation showing a series of perforations with thimbles therein to receive the locking-bolts, and this figure may be'regarded as a fragment of the outside window-sash or of the inner portion of the window-casing.

In all the figures like letters of reference wherever they occur indicate corresponding parts.

A represents the top of the inner or lower window-sash, B the side rail of the outer sash, and O a portion of the window-casing.

D is the metallic casing or shell of the sashfastener, and this is made as light as is consistent with its necessary strength and durability and of general form in plan such as will be convenient for application upon the top of the lower sash, as A, and so as to escape the parting-strip and the sash-rope. It is provided with perforations a 0L to receive the screws 1) b, by which it is seen red in place.

E and F are the two locking-bolts, each having appendages or arms which slide past each other within the shell. The arm on the bolt E is slotted as at c in a direction substantially at right angles with theaxis of the bolt and again atd substantially parallel with the bolt. The arm of bolt F is slotted as at e in the direction of the bolt and as atfsubstantially at right angles thereto. The arm of bolt E (when the fastener is in place on the sash) rides under that of bolt F, and both arms are guided and held in the shell by means of a guiding-stud g, the same passing through the two slots d and e and being headed over, so as to prevent displacement of the arms. The bolts E and F move through suitable orifices in the wall of the shell D and are held therein by any suitable means, as by slightly contractingthe metal ofthe shell, as indicated in Figs. 2, 3, and 5. This method of holding the bolts is preferred because it, with the headed stud g, obviates the use of a bottom plate for the shell.

G is the operating knob or thumb-piece,

the same being secured upon the shell, so that ICO it can be turned, as bya simple form of screw tion, as at 7 this slot being intended to be covered by the base of the knob G and to accommodate the two studs 7; and Z, which are applied to the bottom of the knob, project through the slot 2', and enter the slots 0 and f, the stud Z being, of course, shorter than the stud 70, so that it will ride over the arm of bolt E and without interfering therewith. The studs 75 and Z are located at about ninety degrees from each other measuring from the center of the screw it. The proportions and arrangements of the parts are such that when the bolts are thrown out the two studs 7; and Z are opposite the center of the slot 71, so that neither of the bolts E or Fcan be moved back by application of any tool or implement thereto, as from the exterior of the window or its casing.

To prevent the knob G from being turned from the exterior of the window, as by the application of a turning-tool thereto, I supply a suitable locking pin or detent, as m. This is mounted on a spring, as n, within the shell D, projects up through a slot in the shell, and enters a.notch, as 0, formed in the base of the knob Gthat is, it enters this notch when the bolts are thrown out or in locked position. To withdraw the bolts or to unlock the sashes, it is necessary to first withdraw the spring-actuated pin on and then turn the knob G. This withdrawal or retraction may easily be accomplished with one finger and the knob turned by the thumb and another finger; but it would be impracticable or impossible for a person to effect both these necessary movements from the exterior of the window without a speciallyprepared tool suitablefor the purpose.

The window-casing and the outer sash may The shellD is slotted in a circular direc-.

be supplied with metallic thimbles, as p p, in any desired numbers, these being intended to receive the ends of the bolts and to prevent damage to the woodwork.

Theimproved device being constructed and arranged substantially in accordance with the foregoing explanations will be found to answer all the purposes or objects of the invention hereinbefore alluded to.

Having now fully described my invention, what I claim as new herein, and desire to secure by Letters Patent, is

1. In'a sash-fastener of the character herein set'forth, the combination of the two bolts each having an arm or appendage provided with two slots at substantially right anglesto each other, the said arms being arranged to move one under the other and being guided and held in place within the shell by a guiding-stud projecting through both, and an exterior knob carrying pins projecting through a circular slot in the top of the shell and entering slots in the said arms and arranged to move the arms, substantially in the manner and for the purposes set forth.

2. In a sash-fastener of the character herein set forth, the combination with the knob carrying the pins and the locking-bolts moved by said pins, of a spring-actuated detent projecting up from the interior of the shell and arranged to engage a notch in the base of the operating-knob, substantially as shown and described and for the purposes set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES XV. LYON.

- \Vitnesses:

O. SEDGWICK, Won'rH Osooon. 

